2019688325

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 2651616000

約数和(自身を除く): 631927675

約数列:

[1, 5, 25, 29, 79, 145, 179, 197, 395, 725, 895, 985, 1975, 2291, 4475, 4925, 5191, 5713, 11455, 14141, 15563, 25955, 28565, 35263, 57275, 70705, 77815, 129775, 142825, 176315, 353525, 389075, 410089, 451327, 881575, 1022627, 2050445, 2256635, 2785777, 5113135, 10252225, 11283175, 13928885, 25565675, 69644425, 80787533, 403937665, 2019688325]

約数ペア:

[(1, 2019688325), (5, 403937665), (25, 80787533), (29, 69644425), (79, 25565675), (145, 13928885), (179, 11283175), (197, 10252225), (395, 5113135), (725, 2785777), (895, 2256635), (985, 2050445), (1975, 1022627), (2291, 881575), (4475, 451327), (4925, 410089), (5191, 389075), (5713, 353525), (11455, 176315), (14141, 142825), (15563, 129775), (25955, 77815), (28565, 70705), (35263, 57275)]